Slumbering Tsar: The Hidden Citadel, Part 5: The Mind of Chaos

From the publisher's website: At the heights of evil, the player characters learn of the true depravity that was the leadership of Tsar as they venture through the perils of the College of Glazerel , the Laboratories, the Guest Chambers, and the wretched Sanctus Defilus. Here they discover what truly happened in those last horrific days of the Battle of Tsar and gain an inkling of the true secret purpose of the entire city.